<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>要注意传什么参数   返回什么结果</title>
</head>
<body>
    
</body>
</html>
<script>
    function lc(){
        console.log(1+1);
    }

    function as(){
        return console.log(1+1);
    }

    let akk = ()=>{
        return 3+3
    }

    lc()
    as()
    console.log(akk);
</script>